body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.container {
    width: 50%;
    margin: auto;
    overflow: hidden;
    padding: 20px;
    background: #fff;
    margin-top: 50px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
}

#postForm {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}

#postForm input, #postForm textarea {
    padding: 10px;
    font-size: 16px;
    margin-bottom: 10px;
}

#postForm button {
    padding: 10px;
    font-size: 16px;
    background: #333;
    color: #fff;
    border: none;
    cursor: pointer;
}

#postForm button:hover {
    background: #555;
}

.post {
    padding: 10px;
    border-bottom: 1px solid #ddd;
}

.post:last-child {
    border-bottom: none;
}